[Extensions] Convert APIs to use movable types [10]

chrome/common/extensions/api/webstore_private.json

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 [
   {
     "namespace":"webstorePrivate",
     "description": "none",
+    "compiler_options": {"use_movable_types": true},
     "types": [
       {
         "id": "Result",
         "type": "string",
         "enum": [{
           "name": "",
           "description": "Empty string, used to indicate success by beginInstallWithManifest3"
         }, {
           "name": "success",
           "description": "Installation was successful"
@@ skipping 359 matching lines @@
                 "$ref": "Result",
                 "description": "Whether an attempt to launch an app succeeded, or the reason for failure."
               }
             ]
           }
         ]
       }
     ]
   }
 ]